1.2.467. Follow Closure Definition

This command adds DEFINITION link between closure <https://www.php.net/`closure>`_ and arrow functions definitions and their usage.

Local usage of the closure <https://www.php.net/`closure>`_, in the same scope, are detected. Relayed closure <https://www.php.net/`closure>`_, when they are transmitted to another method for usage, is detected, for one jump.

This also supports first class callable, when the callable is defined in the code code (aka, not with native PHP functions or external libraries).

<?php

function foo() {
    $closure = function () {};
    // Local usage
    echo $closure();
}

function bar(Closure $x) {
    // relayed usage
    echo $x();
}


?>

1.2.467.1. Specs

Short name	Complete/FollowClosureDefinition
Rulesets	All, CE, Changed Behavior, NoDoc
Exakat since	1.9.2
PHP Version	All
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	High
Features	closure, arrow-function
Available in	Entreprise Edition, Community Edition, Exakat Cloud